Espares are nor ally pretty comprehensive but it looks like you're unlucky:
https://www.espares.co.uk/search/mo1583008/fridges-and-freezers/premiere/rff5050ff
Actually, your luck may have just done a Boris style U turn:
https://www.inter-spares.co.uk/premium-appliance-brands-ltd-1/premium-appliance-brands-ltd-fridge-and-freezer-spare-parts/rff5050ff.html
Ftxfg, November 2021
